The correlation coefficient is:(a) r(X, Y) = \(\frac{\sigma\,_x\sigma\,_y}{cov(x,y)}\)(b) r(X, Y) = \(\frac{cov(x,y)}{\sigma\,_x\sigma\,_y}\)(c) r(X, Y) = \(\frac{cov(x,y)}{\sigma\,_y}\)(d) r(X, Y) = \(\frac{cov(x,y)}{\sigma\,_x}\)

The correlation coefficient is:(a) r(X, Y) = \(\frac{\sigma\,_x\sigma

1.	The correlation coefficient is:(a) r(X, Y) = \(\frac{\sigma\,_x\sigma\,_y}{cov(x,y)}\)(b) r(X, Y) = \(\frac{cov(x,y)}{\sigma\,_x\sigma\,_y}\)(c) r(X, Y) = \(\frac{cov(x,y)}{\sigma\,_y}\)(d) r(X, Y) = \(\frac{cov(x,y)}{\sigma\,_x}\)
Answer» (b) r(X, Y) = \(\frac{cov(x,y)}{\sigma\,_x\sigma\,_y}\)